01 -
Cook noodles according to package instructions until just tender. Drain and toss with sesame oil to prevent sticking. Set aside.
02 -
Heat vegetable oil in a large skillet or wok over medium-high heat. Add ground beef, break apart, and cook until browned. Drain excess fat.
03 -
Add chopped onion to the skillet and cook until softened. Stir in minced garlic, ginger, and the white parts of green onions, cooking for 1 minute to release aromas.
04 -
Add shredded carrots and sliced bell pepper to the skillet. Stir-fry for 2-3 minutes until slightly tender but still crisp.
05 -
Whisk soy sauce, oyster sauce, hoisin sauce, sesame oil, brown sugar, and red pepper flakes or chili paste (if using) in a bowl. Pour over beef and vegetables, coating evenly.
06 -
Add cooked noodles to the skillet and toss thoroughly with the sauce-coated beef and vegetables. Cook for 2-3 minutes to meld flavors and warm noodles.
07 -
Remove from heat. Garnish with toasted sesame seeds, green onion tops, and optionally drizzle chili oil or Sriracha. Serve immediately.